[Ready-to-Use Flat 3cm Sheets, Set of 4] Soundproofing Fast Lab Flat Urethane Foam Sponge, Sound Absorbing Material, Cushioning Material, 25cm x

✅ [No need to worry about losing its shape] We carefully package our products to prevent them from losing their shape as much as possible. You don't have to worry about opening them only to find that the sponge has been deformed and you can't use it right away. ✅ [No need to worry about unpleasant odors] There is almost no unpleasant odor that is common with other products. It is not so smelly that you have to dry it for a day before using it, and it is not impossible to use it indoors, so you can use it immediately from the moment you receive it, regardless of the purpose or location. ✅ [Flat structure for a clean look and effective sound absorption] The flat surface prevents the appearance from being noisy. Even after processing, it looks clean and neat. However, it still functions as a sound absorbing material. For sound deadening, stick it to the walls of your car, home theater, piano room, music room, etc. to efficiently absorb sound. ✅ [Flat structure provides enveloping shock absorption] The flat structure provides even cushioning to securely protect your valuables. As shock protection for pedal cases, camera cases, attaché cases, and computer storage. As vibration prevention material for aquariums and motorcycle rear boxes. As dust prevention material for homemade aquarium filters and ventilation holes. Because it is a simple product, it can be used for a variety of purposes. ✅ [About sound absorption and sound insulation] Sound absorption is the absorption of reflected sound. Sound absorption makes the sound clearer. Soft, uneven materials such as sponge are effective, and this product is ideal. Sound insulation blocks sound so that it cannot be transmitted, for example, preventing the sound of a piano or stereo from escaping. It prevents outside sounds from entering. Materials must be hard and heavy, such as soundproofing sheets or plasterboard. *This product cannot block sound. ✅ [Specifications] Size: 25 x 25 cm, Thickness: 3 cm, Contents: 4 sheets, Material: Urethane foam, Features: Flame retardant, Density: 26/m³ ⚠️ [Please note] The set of 4 does not come with double-sided tape. Separate double-sided tape and a stapler are required for installation.